UPDATE: A head-on collision has left four people seriously injured, including a mother and her daughter, after their cars collided near Munbilla, outside Kalbar, last night.

The Toowoomba-based RACQ LifeFlight Rescue helicopter was called to the accident scene at Kents Lagoon, just after 8pm.

The daughter of one of the drivers, a 25-year-old woman, was airlifted by the RACQ LifeFlight Rescue helicopter with pelvic and internal injuries.

She was flown to the Princess Alexandra Hospital in a stable condition.

Police say two cars were driving in opposite directions on Munbilla Rd at Kents Lagoon at 8pm when they crashed.RACQ LifeFlight Rescue

The Queensland Government Air rescue helicopter was first on the scene and airlifted the passenger of the second car, a 27-year-old woman, to the Royal Brisbane and Women's Hospital with severe chest injuries.

The two drivers, a 22-year-old man and a 57-year-old woman, were transported by Queensland Ambulance Service road ambulance to Ipswich Hospital with abdominal injuries.